Oracle Database Cloud Service Implementation Essentials — Question 4

In the Oracle Data Warehouse Reference Architecture, which term is not a layer in the data warehouse?

Answer options

• A. Access and Performance Layer
• B. Master Data Layer
• C. Staging Data Layer
• D. Presentation Data Layer

Correct answer: D

Explanation

The correct answer is D because the Presentation Data Layer is not officially recognized as a distinct layer in the Oracle Data Warehouse Reference Architecture. The other options, A, B, and C, are established layers that serve specific functions within the architecture.